xenia-project/FFmpeg
1
0
Fork 0
mirror of https://github.com/xenia-project/FFmpeg.git synced 2024-11-24 12:09:55 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

psymodel: Remove the single channel analysis function

Browse Source
This commit is contained in:
Nathan Caldwell 2011-05-18 23:23:22 -06:00 committed by Alex Converse
parent 01344fe409
commit d3a6c2ab7e
3 changed files with 6 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/aacenc.c
View File

@ -572,7 +572,7 @@ static int aac_encode_frame(AVCodecContext *avctx,
put_bits(&s->pb, 4, chan_el_counter[tag]++);
for (ch = 0; ch < chans; ch++)
coeffs[ch] = cpe->ch[ch].coeffs;
s->psy.model->analyze_group(&s->psy, start_ch, coeffs, wi);
s->psy.model->analyze(&s->psy, start_ch, coeffs, wi);
for (ch = 0; ch < chans; ch++) {
s->cur_channel = start_ch * 2 + ch;
s->coder->search_for_quantizers(avctx, s, &cpe->ch[ch], s->lambda);

9
libavcodec/aacpsy.c
View File

@ -557,8 +557,8 @@ static float calc_reduced_thr_3gpp(AacPsyBand *band, float min_snr,
/**
* Calculate band thresholds as suggested in 3GPP TS26.403
*/
static void psy_3gpp_analyze(FFPsyContext *ctx, int channel,
const float *coefs, const FFPsyWindowInfo *wi)
static void psy_3gpp_analyze_channel(FFPsyContext *ctx, int channel,
const float *coefs, const FFPsyWindowInfo *wi)
{
AacPsyContext *pctx = (AacPsyContext*) ctx->model_priv_data;
AacPsyChannel *pch = &pctx->ch[channel];
@ -741,14 +741,14 @@ static void psy_3gpp_analyze(FFPsyContext *ctx, int channel,
memcpy(pch->prev_band, pch->band, sizeof(pch->band));
}
static void psy_3gpp_analyze_group(FFPsyContext *ctx, int channel,
static void psy_3gpp_analyze(FFPsyContext *ctx, int channel,
const float **coeffs, const FFPsyWindowInfo *wi)
{
int ch;
FFPsyChannelGroup *group = ff_psy_find_group(ctx, channel);
for (ch = 0; ch < group->num_ch; ch++)
psy_3gpp_analyze(ctx, channel + ch, coeffs[ch], &wi[ch]);
psy_3gpp_analyze_channel(ctx, channel + ch, coeffs[ch], &wi[ch]);
}
static av_cold void psy_3gpp_end(FFPsyContext *apc)
@ -931,6 +931,5 @@ const FFPsyModel ff_aac_psy_model =
.init = psy_3gpp_init,
.window = psy_lame_window,
.analyze = psy_3gpp_analyze,
.analyze_group = psy_3gpp_analyze_group,
.end = psy_3gpp_end,
};

12
libavcodec/psymodel.h
View File

@ -111,16 +111,6 @@ typedef struct FFPsyModel {
*/
FFPsyWindowInfo (*window)(FFPsyContext *ctx, const int16_t *audio, const int16_t *la, int channel, int prev_type);
/**
* Perform psychoacoustic analysis and set band info (threshold, energy) for a single channel.
*
* @param ctx model context
* @param channel audio channel number
* @param coeffs pointer to the transformed coefficients
* @param wi window information
*/
void (*analyze)(FFPsyContext *ctx, int channel, const float *coeffs, const FFPsyWindowInfo *wi);
/**
* Perform psychoacoustic analysis and set band info (threshold, energy) for a group of channels.
*
@ -129,7 +119,7 @@ typedef struct FFPsyModel {
* @param coeffs array of pointers to the transformed coefficients
* @param wi window information for the channels in the group
*/
void (*analyze_group)(FFPsyContext *ctx, int channel, const float **coeffs, const FFPsyWindowInfo *wi);
void (*analyze)(FFPsyContext *ctx, int channel, const float **coeffs, const FFPsyWindowInfo *wi);
void (*end) (FFPsyContext *apc);
} FFPsyModel;